Car roof



Nov. 11, 1930. w. D. THOMPSON CAR ROOF Filed Nov. 2 Sheets-Sheet 1awuautoz 7 2654722 I. Tfiampcan him /M-w- RI 14. kfiM Patented Nov. 11,1930 UNITED STATES PATENT OFFICE,

. WILLIAM D. THOMPSON, OF DETROIT, MICHIGAN, ASSIGNOR, BY MESNEASSIGNMENTS,

T nuronnvs cAa or'nmwann can Application filed November This inventionrelates to car roofs and more particularly to that type of roof in whichmetal roof sheets are employed.

The invention relates more particularly to alview of a portion of a carroof constructed in accordancewith my invention,

Fig. 2 is a fragmentary view of the roof structure illustrated in Fig. lat the cave 20 thereof,

Fig. 3 is a side elevation of the structure illustrated in Fig. 2,

Fig. 4 is an enlarged vertical sectional view taken substantiallyon theplane indicated by line 44 in Fig. 3, and

Fig. 5 is an enlarged sectional view taken substantially on the planeindicated by line 55 in Fig. 4. T Referring now particularly to thedraw- 30 ings wherein like reference characters inclicate like parts,itwill benoted that there is illustrated a side plate of the car to whichthe facia boardsll are connected by means of bolts 12, while the sidesheathing is indi cated by the reference character 13. The sub-structurecomprises mullions 14, purlins 'and a ridge pole 16, upon which arearranged metal roof sheets 17 provided with upstandingedge flanges 18,the longitudinal joints between the roof sheets being weatherproofed bytransverse caps19 running parallel with the mullions 14.

Each transverse cap 19 is held against upward displacementby means of ashoulder bolt 20riveted as at21 to the transverse cap 19 andextendingthrough an enlarged opening 22 in the associated mullion 14.The lower end of each boltpasses through an aperture 23 formed in thesubstantially horizontal arm of a knee brace 24 secured to the ROOFINGCOMPANY, 015 DETROIT, MICHIGAN, A CORPORATION soon 23, 1925. Serial No-70,920.

side plate 10 for instance, by means of the bolts 12and additionalfastening bolts 25. The lower end of each shoulder bolt 20 is threadedto receive a nut 26, it being preferable to also associate with eachbolt a loc washer 27.

The caves end of each roof sheet is formed 3 below the upper edge of theside plate 10 and extending the roof sheets out beyond the side platesto a point in substantially vertical alignment with the outer side ofthe facia boards.

Secured within the chamber 31 is an inner flashing strip 32 providedwith a horizontal portion 33 extending under the returnbent flange 28 ofthe roof sheets and provided with a plurality of spaced upwardlyprojecting embossed portions 34 constituting bearing surfaces for thereturnbent flange 28 and spacing this flange from the general plane ofthe portion 33 of this inner flashing 32. Associated in cooperativerelation therewith is an outer flashing 35 having areturnbent portion 36extending within the pocket 30 formed by the returnbent flange28 of theroof sheets. This outer flashing 35 is arranged in superposed relationwithin the flashing 32 and also engages the roof sheet on the surfacethereof diametrically opposed to the surface engaged by the embossedportions 34 of the inner flashing strip. The vertical portion 37offlashing strip 35 is provided with a plurality of spaced inwardlyextending embossed portions 38 arranged alternately in differenthorizontal planes and perforated to receive fastening members 39 whichare passed therethrough and through the facia boards 11 into side plate10. The embossed portions 38 with their openings are arrangedinalternately different horizontal planes so that the passage of thefastening the returnbent flanges 28. Fur hermore, the

means 39 through the facia boards 11 will not split or otherwise Weakenthe same. The inner flashing strips 32 are secured in place by means offastening members 40 passing through openings in the vertical portionall of this flashing strip.

While the embossed portions 34 of' 'the inner flashing strip 32 providebearing surfaces for the returnbent flanges of the roof sheets,,;andwhile the embossed portions 38 areapertured to receive thefasteningmembers 39 these. embossed portions also aflord spacing'means tor theflashing strips 32 and; 35 so as to perrmt the escape of anymoisturewhich enters the chamber '31;

The herein descr bed construction perm ts of a freedom of movementof theroot sheets 17 while preventing the same from moving,

outwardly and consequently down from off the ridge of the car. Thelength of the hearing surfaces formed by the cooperating inner and outerflashing strips is such as to firmly:

hold theroofsheets at the eaves irrespective of the upward movement ofthe roof sheets and consequently 'thein'wa'rd movement of flashingstripsare freely movable in an outward direction, in consequence of a bowingof the side plates without altering the eflect of their engagement withthe returnbent flange ofthe root sheets.

While the invention has been described and illustrated herein somewhatin detail, it will be, readily apparent thatvariouschangesmay.

be resorted to without departingfroin th spirit andscope of thisinvention and to this end reservation is made to make such changes asmay come within the purview of the acoompanying claims.

What I claim as my'lnvention 1s: a

1. Ina car roof the Combination .with a sub-structure, of a roofingsheet having a depending returnbent flange at an eave of the roof inspaced relation to the underside of the roofingsheet, andinner and outerflashing strips co-operatingtoform a bearing for said flange ofsuflicient depth to form a non-shearing stop to limit the outwardmovement of'saidroofing sheet, said flash-. mg strlps belng free tomoveoutwardlyrelative to said roofing sheet.

2. In a car roof the combination with; a. sub structure, of a'roofingsheet having a de-. pending returnbent flange at an eave or" the q roof,and inner and outer flashing strips'co f operating to form a bearing forsaid flan 'e oflsuflicient depth to form a non-shearing stop tolimit'the outward movement of said roofing sheet, said flashing strips beingfreeto move outwardly relative to said roofing,

sheet, and spacing bosses formed-on said flashing strips to provide adrainage space.

3. In a car root, the combination with a sub-structure, of a roofingsheet having a depending return-bent flange atfan eave of'thesub-structure; ofia roofing sheet having a depending return-bent flangeat an eave of the roof, an inner flashing strip forming a hearing forthe flange of the roof sheet, andan l outer flashingstrip having areturn-bent portion slidably engaging the return bend of said roofingsheet and adapted formo'vement;

outwardly relative to the said returnbend ofv the roofing sheet.

6; In a car "roof, the combination with" a l substructure, of a roofingsheet having a depending return-bent flange at an eave of the roof, aninner.flashingstrip provided with I embossedportions forming a bearingforthe flange Of the roof sheet, and an outer flashing strip spaced fromsaid inner flashin'g strip by embossed portions and having a return bentroofing sheet andholdingthe same in engagement with said embossedportions:

7. In a car roof, the combin'ationwith' a sub-structure, of a roofingsheet having adependingreturn-bent flange at an eave ofgthe roof aninner flashin stri rovided with 7 i D i embossed'portions 'formingabearing for the flange ofthe roof sheet and' spacing said, flangetherefrom, and an outer flashing strip having a return-bent portionengaging the return-bend of said roofing 'sheet and :having embossedportions to space thefsame from" said sub-structure, the saidembossedportions erating to form a, drainage space;

and inner andouter flashingstrip's engaging said roofing sheet flange,said outer flashing."

8 In a carroofthe combination of a sub zi structure, 1 a roofing sheet,hav'ing" aQdepend-E ingreturn-b'ent flange at an eave of the'roof,

portion engagingth'e. return bend of said V 110 of the inner and outerflashing strips "ooop having a return-bent ortio e e dingil i thereturn-bent portion of [said roof. sh p flange d Pe i inga ela v idinsov ment laterally v I andisaid roof sheet flange;

9. In a car.. root the combination with. it

sub-structure, of a'roofing sheethaving a depending return-bent'flangeat an eaveof the I roof, an in e fl shieas iipl nsasin a flange, n i nper flas ing; riptf m with a return bent portion extendinginto thelaterallylwith respect thereto.

return-bend'of said roofing shee't and s lidable 12c; etween said outer;flashing '10. In a car roof, the combination with a sub-structure, of aroofing sheet having a return-bent flange at the eave of the roof spacedinwardly from the edge of the roof in spaced relation to the undersideofthe roofing sheet, inner and outer flashing strips cooperating to forma bearing for the said return-bent flange, the said flashing stripsbeing provided with oppositely facing embossed 1O portions to providemeans for spacing the flashing strips from each other and for supporting the said flange, and a return-bent portion formed on one of theflashing strips to form a non-shearing stop to limit the outwardmovement of the roofing sheet while permitting inward movement of theroofing sheet and outward movement of the flashing strip.

11. In a car roof, the combination with a sub-structure, of a roofingsheet having a depending return-bent flange at the eave of the roof,said flange being bent inwardly then downwardly and then outwardly belowthe said roof, an inner flashing strip having embossed portions forminga bearing for the outwardly extending portion of said returnbent flange,and an outer flashing strip havingaportionbent inwardly then upwardlyand then outwardly to engage the said inwardly downwardly andoutwardlyextending portions of the said flangeof the roofing sheetrespectively to limit outward movement of the said roofing sheet, thesaid outer flashing strip being adapted for movement outwardly relativeto the said return-bent flange of the roofing sheet.

12. In a car roof the combination with a sub-structure, of a roofingsheet having a depending return bent flange at an eave of the roof, andflashing strips engaging said flange on opposed sides thereof, saidflashing strips cooperating to form a non-shearing stop to limit theoutward movement of said roofing sheet while being movable outwardlyrelative to said flange.

In testimony whereof I afiix my signature.

WILLIAM D. THOMPSON.

